{"json_modified": "2016-03-28T08:41:39.754697", "uuid": "a4beced7-eeb6-4ba1-88d6-0c12f3b1d39f", "title": "JSIteratorOp", "url": "/en-US/docs/Mozilla/Projects/SpiderMonkey/JSAPI_reference/JSIteratorOp", "tags": ["Obsolete", "R\u00e9f\u00e9rence", "Reference", "SpiderMonkey", "JSAPI Reference"], "translations": [], "modified": "2015-01-18T15:28:26", "label": "JSIteratorOp", "localization_tags": [], "locale": "en-US", "id": 133161, "last_edit": "2015-01-18T15:28:17", "summary": "The JavaScript engine calls the <code><strong><a href=\"/en-US/docs/Mozilla/Projects/SpiderMonkey/JSAPI_reference/JSExtendedClass\" title=\"To implement a custom class that uses any of the JSExtendedClass callbacks:\"><code>JSExtendedClass</code></a>.iteratorObject</strong></code> callback to create an iterator object for a given object. The callback should return an iterator object or <code>NULL</code> if an error or exception occurred on <code>cx</code>.", "sections": [{"id": "Quick_Links", "title": null}, {"id": "Syntax", "title": "Syntax"}, {"id": "Description", "title": "Description"}, {"id": "See_Also", "title": "See Also"}], "slug": "Mozilla/Projects/SpiderMonkey/JSAPI_reference/JSIteratorOp", "review_tags": ["technical"]}